Classification of mental tasks using support vector machine based on linear predictive coding and new mother wavelet transform

The aims of Brain-Computer interfaces (BCI) research is helping paralyzed people communicating with others by using their electroencephalogram (EEG) signals. In this study, EEG signals from 5 mental tasks were recorded from 7 subjects and combinations of 2 different mental tasks were studied for eac...

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Published in:2015 International Conference on Biomedical Engineering and Computational Technologies (SIBIRCON) pp. 156 - 159
Main Author: Azmy Gad, Mohamed Moustafa
Format: Conference Proceeding
Language:English
Published: IEEE 01.10.2015
Subjects:
Discrete wavelet transforms
Electroencephalography
Feature extraction
Sensitivity
Support vector machines
ISBN:9781467391092, 1467391093
Online Access:Get full text
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Abstract The aims of Brain-Computer interfaces (BCI) research is helping paralyzed people communicating with others by using their electroencephalogram (EEG) signals. In this study, EEG signals from 5 mental tasks were recorded from 7 subjects and combinations of 2 different mental tasks were studied for each subject for one trial. The motivation for this work is using Linear predictive Coding (LPC) method to compress channels of EEG one channel. Eight features are employed for each signal of EEG using LPC 1st order followed by 3 level Discrete Wavelet Transform (DWT). New mother wavelet is used to be near the waveform of EEG signals. Statistical calculations are conducted for the 4 coefficients of DWT. Classification is conducted using support vector machine SVM. The classifier using SVM provided a high recognition rate reaching up to 100%, in some cases, and an average rate of about 85 %. The average specificity percent is 83.33 %. The average sensitivity percent is 86.66%.
AbstractList The aims of Brain-Computer interfaces (BCI) research is helping paralyzed people communicating with others by using their electroencephalogram (EEG) signals. In this study, EEG signals from 5 mental tasks were recorded from 7 subjects and combinations of 2 different mental tasks were studied for each subject for one trial. The motivation for this work is using Linear predictive Coding (LPC) method to compress channels of EEG one channel. Eight features are employed for each signal of EEG using LPC 1st order followed by 3 level Discrete Wavelet Transform (DWT). New mother wavelet is used to be near the waveform of EEG signals. Statistical calculations are conducted for the 4 coefficients of DWT. Classification is conducted using support vector machine SVM. The classifier using SVM provided a high recognition rate reaching up to 100%, in some cases, and an average rate of about 85 %. The average specificity percent is 83.33 %. The average sensitivity percent is 86.66%.
Author Azmy Gad, Mohamed Moustafa
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  givenname: Mohamed Moustafa
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  organization: Biomed. Eng. Dept. in Med. Res. Inst., Alexandria Univ. in Alexandria in Egypt, Egypt
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Snippet The aims of Brain-Computer interfaces (BCI) research is helping paralyzed people communicating with others by using their electroencephalogram (EEG) signals....
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StartPage 156
SubjectTerms Discrete wavelet transforms
Electroencephalography
Feature extraction
Sensitivity
Support vector machines
Title Classification of mental tasks using support vector machine based on linear predictive coding and new mother wavelet transform
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